Discover, Appreciate, & Understand the Animal World!

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See All Animals A-Z!

We believe that if people know more about the world’s creatures they will better care for them. That’s why we add new animals for you to discover – each and every day! Learn about any animal using the search box below or subscribe to our YouTube Channel. Also, be sure to check out our growing list of Animal Quizzes and Web Stories.

Discover Your Favorite Animal Today!

Latest from A-Z Animals

The Oldest Building in Idaho Is Still Standing After 170 Years

The United States has a fascinating history that spans hundreds of years. As the United States expanded its territory westward, the settlers that went to those western territories found themselves… Read More

By Patrick MacFarland 2 mins ago

Discover the Largest King Salmon Ever Caught

The largest King salmon ever caught by an individual was a 97-pound whopper! Les Anderson reeled in the giant in 1985 on Alaska's Kenai River. It remains the world record… Read More

By Katie Melynn Wood 8 mins ago

Velociraptor vs Tiger: Who Would Win in a Fight?

Velociraptors gained a fair amount of popularity due to the Jurassic Park film series. They’re portrayed as incredibly smart, deadly hunters. However, that depiction is not all that accurate. That… Read More

By Kyle Glatz 32 mins ago

North Pole vs. South Pole: Discover 5 Key Differences Between These Frigid Spots

The North Pole and the South Pole are located at the extremes of the Earth and are the coldest places in the world. Both are incredibly important places as they help… Read More

By Hannah Ward 33 mins ago

The 5 Largest Alligators Ever Found in Lousiana

The American alligator (Alligator mississippiensis) is one of the most well-known large reptiles in the United States. On average, males reach about 15 feet long and weigh between 400 and… Read More

By Stephanie Heath 1 hour ago

Texas’s Population Has Exploded 160% in 50 Years…10 Reasons Why People Move to the Lonestar State

Have you ever thought about moving to Texas? If you have, you are not alone. The state’s population has seen significant growth in the last 50 years. Known for its… Read More

By Sharon Parry 2 hours ago

10 Most Traveled Bridges in South Carolina In Desperately Poor Condition

South Carolina has a population of about 5 million. South Carolina is a coastal state. It achieved statehood in 1788. South Carolina's bridges cross many waterways in small towns and… Read More

By Lisa Bohler 2 hours ago

The 10 Largest European Countries Today and in 50 Years

Europe is made up of 50 countries. Russia is the largest country in Europe, and Vatican City is the smallest. Some assume there are only 44 countries in Europe because… Read More

By Lisa Bohler 2 hours ago

9 Reasons North Carolina Is the Ideal Spot for Deer Hunting in the U.S.

Looking through the crosshairs of a scope at a young buck in the woods During the North Carolina deer season of 2021–2022, the N.C. Wildlife Resources Commission reported that hunters… Read More

By Lisa Bohler 2 hours ago

The 7 Main Types of Animals And Their Characteristics

There are many different types of animals in the world, but some of the largest categories include:

Mammals around the world!


The official mammal class is Mammalia. Animals that are considered mammals include warm-blooded vertebrates that have hair or fur and whose babies drink milk. Unlike other animal types like birds and insects, all mammal babies drink milk that comes from their mother’s bodies. This is one of the key ways to know if an animal is a mammal.

See the complete list of mammals.

Close up of a colorful lizard


Lizards, dinosaurs, crocodiles, turtles, and snakes – all belong to that ancient and stout class of animals known as the reptiles. This is a diverse group with more than 10,000 different species and a huge representation in the fossil record. Once the dominant land vertebrates on the planet, reptiles still occupy just about every single ecosystem outside of the extreme north and south.

See the complete list of reptiles.

Beta fighting fish


Fish are aquatic vertebrates. They usually have gills, paired fins, a long body covered with scales, and tend to be cold-blooded. “Fish” is a term used to refer to lampreys, sharks, coelacanths and ray-finned fishes, but is not a taxonomic group, which is a clade or group containing a common ancestor and all its descendants.

See the complete list of fish.

Colorful birds


Birds, members of the class Aves, include more than 10,400 living species. Their feathers distinguish them from all other classes of animal; no other animals on earth have them. If you see an animal with feathers, it’s undoubtedly a bird. Like mammals, birds are warm-blooded vertebrates with four-chambered hearts. However, they are more closely related to reptiles and are believed to have evolved from dinosaurs.

See the complete list of birds.

Golden eyed leaf frog


The official class of amphibians is Amphibia. To have the classification of an amphibian, an animal must be a vertebrate, require water to survive, be cold-blooded, and spend time both on land and in water. Though other animals only live on land or in the water, amphibians have the unique ability to thrive equally in both. Amphibians cover over 6,000 different species across the globe, but about 90% are frogs.

See the complete list of amphibians.

Queen butterfly danaus gilippus on blue hydrangea flowers.


The definition of an invertebrate is any animal that does not have a backbone or vertebral column. The most prolific and easily recognizable members of the invertebrate family are insects. It’s estimated that upwards of 30 million individual species of invertebrates may exist accounting for between 90-95 percent of all organisms on the planet.

See the complete list of invertebrates.

Queen butterfly danaus gilippus on blue hydrangea flowers.


All insects are part of the taxonomical phylum Arthropoda, and they are collectively referred to as arthropods. It is common to see this name misspelled as “anthropod,” but this is not the correct term. They can be found in nearly every environment on the planet, and they currently account for over half of all known living organisms in the world. They have undergone many cycles of evolution depending on the resources available to them.

See the complete list of insects.

Explore Types of Wild Animals from Around the World

We track thousands of animals from every continent and corner on earth, and are adding more every day!

  • African Animals – Africa is home to some of the most incredible and dangerous animals in the world.
  • Asian Animals – Asia has the world’s longest coastline, and an amazing diversity of exotic animals, birds, and more.
  • Central American Animals – Discover the the nearly 400 different animals we track in Central America today.
  • Eurasian Animals – Eurasia has some of the rarest animals in the world, like Siberian Tigers and Snow Leopards.
  • European Animals – We track over 500 different animals in Europe, including wolves and bears.
  • North American Animals – North America has many beautiful national parks that house some of the rarest animals on earth.
  • Marine (Ocean) Animals – The ocean is teaming with life, from the smallest shrimp to the largest animal ever – the Blue Whale!
  • Oceanian Animals – Oceania has many islands, and the world’s highest concentration of marsupials.
  • South American Animals – Home to the stealthy Jaguar, the friendly Capybara, and many more!

See Endangered and Extinct Animals Lists

A-Z Animals follow’s the IUCN Red List of Threatened Species definitions of threatened and endangered animals. Please consult the lists below to learn more about which animals need our help the most

  • Extinct – Species that no longer exist on earth
  • Extinct in the Wild – Species that are only known to survive in captive or cultivated environments
  • Critically Endangered – Animals that face an extremely high risk of extinction in the wild
  • Endangered – Animal species that face a high risk of extinction in the wild
  • Vulnerable – Animal species that face a risk of extinction in the wild
  • Near Threatened – Species that are facing population challenges and likely to become vulnerable to extinction soon
  • Least Concern – Animals with strong populations that are not expected to face extinction risk in the near future
  • Data Deficient – Species where we lack adequate information to assess the risk
  • Not Evaluated – Animal species that have not been evaluated yet

Types of Animals By Letter: Explore A to Z Animal Lists

See lists of animals that start with every letter of the alphabet, from A to Z. We track all types of animals like lions and tigers, dogs and cats, even dinosaurs and spiders. Choose your favorite letter below to see all animals that start with it today.

A Aidi
Animals that Start with A

Example: The Aidi

A Brachiosaurus
Animals that Start with B

Example: The Brachiosaurus

A Chilesaurus
Animals that Start with C

Example: The Chilesaurus

A Dalmatian
Animals that Start with D

Example: The Dalmatian

A Eurasier
Animals that Start with E

Example: The Eurasier

A False Cobra
Animals that Start with F

Example: The False Cobra

A Golden Retriever Mix
Animals that Start with G

Example: The Golden Retriever Mix

A Hippopotamus gorgops
Animals that Start with H

Example: The Hippopotamus gorgops

A IMG Boa Constrictor
Animals that Start with I

Example: The IMG Boa Constrictor

A Jaguarundi Cat
Animals that Start with J

Example: The Jaguarundi Cat

A Kinder Goat
Animals that Start with K

Example: The Kinder Goat

A Lesser Scaup
Animals that Start with L

Example: The Lesser Scaup

A Moray Eel
Animals that Start with M

Example: The Moray Eel

A Nubian Goat
Animals that Start with N

Example: The Nubian Goat

A Okapi
Animals that Start with O

Example: The Okapi

A Pugshire
Animals that Start with P

Example: The Pugshire

A Quokka
Animals that Start with Q

Example: The Quokka

A River Otter
Animals that Start with R

Example: The River Otter

A Smallmouth Bass
Animals that Start with S

Example: The Smallmouth Bass

A Treehopper
Animals that Start with T

Example: The Treehopper

A Utonagan
Animals that Start with U

Example: The Utonagan

A Volpino Italiano
Animals that Start with V

Example: The Volpino Italiano

A Welsh Terrier
Animals that Start with W

Example: The Welsh Terrier

A Xenoceratops
Animals that Start with X

Example: The Xenoceratops

A Yellow Anaconda
Animals that Start with Y

Example: The Yellow Anaconda

A Zokor
Animals that Start with Z

Example: The Zokor

Everything To Know About Pet Dogs, Cats Birds, and More

Some of the most popular types of animals on earth are pets. A pet is a domesticated animal that lives with a person or family, usually in a house. The most common pets include dogs, cats, fish, and birds, but there are also many amazing exotic pets like reptiles, lizards, and more! Horses, goats, and pigs can also be pets too.

Pet Dogs

Dogs are the most popular type of pet on earth with nearly 500 million worldwide. Thats almost one dog for every 15 people on earth! There are hundreds of different dog breeds. The Irish Wolfhound is the largest dog breed, and was bred to hunt wolves. Chihuahuas are the smallest, and were likely bred for companionship or to hunt small rodents. The most popular dog breeds are below.

A Irish Setter
Irish Setter

Has a beautiful coat that's flowing and feathered!

A Boston Terrier
Boston Terrier

Friendly, lovable and very strong!

A Golden Retriever
Golden Retriever

Trusting, kind and gentle!

Pet Cats

Cats are the second most popular pet on earth with nearly 400 million worldwide. Thats almost one pet cat for every 20 people on earth! You can read about the hundreds of different cat breeds, from the large to the small. The most popular cat breeds are below

A Abyssinian

One of the oldest cat breeds in the world!

A Australian Mist
Australian Mist

The only cat breed to originate in Australia.

A Ragdoll

One of the larger breeds of domestic cat!

Pet Product Reviews

Pets are important members of our families and should be cared for. The AZ Animals team reviews the latest research on pet health, consults veterinarian best practices, and works directly with vet health specialists to review the best products for your dog, cat, and other pets. We’re excited to share our expert pet product recommendations with you, including the best dog food, best cat food, and best tanks for your pet fish

More Animal News, Facts, Rankings, and More!

Sea Lion Size Comparison: Just How Big Do These Animals Get?

Big, majestic, whiskered aquatic animals that are graceful in the water and awkwardly floppy on land, sea lions are from the pinniped family and live in climates ranging from subarctic… Read More

By Adam Segaller 2 hours ago

The Top 7 Reasons Why The United States Has the Best Skiing in the World

If you are in the United States and want to ski, there are many amazing options for you if you wish to hit the slopes. Moreover, there are numerous reasons… Read More

By Rob Hayek 2 hours ago

Cheetahs Show Just How Fast You Have to Be to Catch an Impala!

Viewer discretion advised for strong language. Cheetahs have a well-earned reputation for being both fast and agile. In this brief clip, we see both skills on display. Two cheetahs have… Read More

By Sharon Parry 3 hours ago

See This Large Monitor Lizard Wade Through the Mud Looking for Crocodile Eggs to Eat

When we think of Africa and the animals that are present, it’s easy to think of the Big Five. The Big Five animals that are well known are lions, buffalo,… Read More

By Hannah Crawford 3 hours ago

Watch an Elephant Stand On Its Hind Legs To Reach Its Food

Have you ever had something just outside of your grasp that you couldn’t reach no matter how hard you tried? And no we don’t mean the metaphorical million dollars we… Read More

By Hannah Crawford 3 hours ago

7 Incredible Christmas Markets Only in Arizona

The winter season brings joy, mirth, and personalized presents to the forefront of commercial America. While it doesn’t often bring snow to the Grand Canyon State, it does bring some… Read More

By Katarina Betterton 3 hours ago

Discover The 10 Largest Ice Skating Rinks In Vermont This Winter

Vermont is the perfect state for winter activities like ice skating. Winter sports are a natural part of life in Vermont. Vermont ice skating rinks provide safe places where everyone… Read More

By Lisa Bohler 4 hours ago

See the World’s Largest Land Animals Wrestling in the Dead of Night

Water is a necessity that both humans and animals need for survival. However, that’s not all water is good for! In addition to hydration, animals from all over the world… Read More

By Hannah Crawford 4 hours ago

Can Scorpions Swim? 10 Facts About How They Handle Water

Scorpions — native creatures to deserts, rainforests, and grasslands across the world — have an interesting relationship with water. This arachnid, not unlike its spider and mite cousins, doesn’t use its… Read More

By Katarina Betterton 5 hours ago

Tibetan Spaniels: Common Facts and Health Problems

The Tibetan Spaniel is a joyful, affectionate dog type that also makes an ideal companion animal. If you're looking to bring a canine into your life, and are unsure of… Read More

By Zoe Carina 7 hours ago

How Do Shark Hunt? 4 Impressive Strategies They Use

Living fossils and apex predators, many species of sharks feature body plans and hunting strategies practically unchanged for hundreds of millions of years. Their ability to detect the electrical fields… Read More

By Cammi Morgan 12 hours ago

Where Is Waco? Map Location and Proximity to Other Texas Cities

Today, we visit a city that lives in more in infamy than in fame. Waco, Texas, the birthplace of Dr. Pepper, is best known for the Waco siege. The city… Read More

By Telea Dodge 14 hours ago

How Tall Is Mount Greylock in Massachusetts?

Mount Greylock in Massachusetts has a long and rich history spanning centuries. It’s located in a geologically distinct area of New England and inspired generations of famous authors. But does… Read More

By Mandy Trotti 14 hours ago

Are Cocker Spaniels the Most Troublesome Dogs? 9 Common Complaints About Them 

Common complaints about cocker spaniels include that they shed too much, their coats mat easily, they bark excessively, they chew things they shouldn’t, and they can’t be left alone. Some… Read More

By Katelynn Sobus 14 hours ago

Can Cactus Survive Winter? 10 Tips for Making It Through Winter

Cacti are succulents and as such they store water in their roots, leaves, and stems. Cold-hardy cacti grown successfully in northern areas have many of the same requirements as in… Read More

By Joanne Paiva 15 hours ago

Discover How 6,000 Reindeer Disappeared from St. Matthew Island

St. Matthew Island is an uninhabited, remote place in Alaska, where very few mammals can survive. This island features freezing-cold conditions and is hundreds of miles away from the nearest… Read More

By Erica Scassellati 15 hours ago

6 Incredible Christmas Markets Only in Canada

Christmastime is one of the happiest times of the year. Throughout most of the world, cities and countries get ready for the joyous holiday. Families start buying presents, schools start… Read More

By Patrick MacFarland 17 hours ago

See This Pelican Open Its Bill Like a Bucket to Catch a Flying Fish

Filmed off the coast of Namibia, this unique footage gives us a slow-motion view of a pelican opening its huge bill and snagging a fish in midair. The ingenious bird… Read More

By Sharon Parry 17 hours ago

These 10 Dog Breeds Can’t Handle Cold Temperatures

When winter weather starts to roll around, some dog breeds are far more excited than others. It's not uncommon to see a pooch or two strutting around fully clad in… Read More

By Sam Hindman 17 hours ago

Discover the Meaning of Jupiter in Capricorn

As many of us begin to dive deeper into the world of astrology, we find there is so much more to learn! Once you’ve analyzed your Sun, Moon, and Rising… Read More

By Volia Schubiger 17 hours ago

See all of A-Z Animals News and Information.

Animal Reference Guides And Educational Resources

We believe if people are more educated about the world’s animals, they will better car for them. That’s why we are building the world’s greatest animal encyclopedia, completely free to you. Please take a moment to learn more about animals today using these helpful guides and resources:

  • Reference Library – See helpful information on conservation, classification, animal evolution, and more
  • Glossary – A list of scientific and technical animal terms, with definitions
  • Animal Habitats – Learn all about different animal habitats
  • Diet – The different animal diets like omnivores, herbivores, and carnivores defined with examples
  • Behavior – Learn all about animal intelligence, communication, community, language, migration, and more.

Animal Encyclopedia With Facts, Pictures, Definitions, and More! FAQs (Frequently Asked Questions) 

What are the 6 types of animals?

The 6 types of animals are mammals, fish, amphibians, reptiles, birds and invertebrates. Additionally, animals are classified in many different ways, which you may learn about in this complete guide to animal classification.

What are the 10 most popular animals?

The 10 most popular animals on AZ Animals are:

  1. Lion
  2. Panther
  3. Amur Leopard
  4. Polar Bear
  5. White Tiger
  6. Wolf
  7. Millipede
  8. Arctic Fox
  9. Marble Fox
  10. Rhinoceros 

How many animals are there?

There are over 1 million known animal species and more than 98% of those are insects, which are indeed animals.